“We are very open minded to the potential use cases in future for digital currencies that are properly controlled and regulated,” chief financial officer Marianne Lake said during a call with reporters to discuss the bank’s third quarter earnings.

Lake also said the bank is “very optimistic” about some of the technology that underlies bitcoin and other digital currencies, a view echoed by Citigroup CFO John Gerspach on that bank’s earnings call with reporters, also on Thursday.

Gerspach said he sees potential for a “real commercial application” for blockchain, the technology that powers trading in digital currencies like bitcoin.